package com.djz.stuinfomge.dao.impl;

import com.djz.stuinfomge.dao.IStudentDAO;
import com.djz.stuinfomge.entity.PageBean;
import com.djz.stuinfomge.entity.Student;
import com.djz.stuinfomge.exception.PageNumOutOfRange;
import com.djz.stuinfomge.util.Finder;

import java.sql.Timestamp;
import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Repository;

/**
 * A data access object (DAO) providing persistence and search support for
 * Student entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see com.djz.stuinfomge.entity.Student
 * @author MyEclipse Persistence Tools
 */
@Repository
public class StudentDAO extends BaseDaoImpl<Student> implements IStudentDAO {
	//根据条件获取bean
	public Student get(Student bean) {
		// 根据条件构造JPA-QL
		Finder finder = Finder.create("from Student");


		finder.append("where 1=1");

		if (bean != null && bean.getName() != null) {

			finder.append("and name like :name").setParam("name",
					"%" + bean.getName() + "%");
		}
		
		Query q = finder.createQuery(getSession());
		List list = q.list();
		if(list.size()<1)
			return null;
		return (Student) list.get(0);
	}
	public PageBean getPage(Integer pageNo, Integer size, Student bean) throws PageNumOutOfRange {
		// 根据条件构造JPA-QL
		Finder finder = Finder.create("from Student");


		finder.append("where 1=1");

		if (bean != null && bean.getName() != null) {

			finder.append("and name like :name").setParam("name",
					"%" + bean.getName() + "%");
		}
		finder.append("order by id desc");
		log.debug("finder: "+ finder +" pageNo: "+ pageNo + " size: "+ size);
		PageBean<Student> page = find(finder, pageNo, size);
		return page;
	}

	private static final Logger log = LoggerFactory.getLogger(StudentDAO.class);
	// property constants
	public static final String NAME = "name";
	public static final String GENDER = "gender";
	public static final String CLASS_ID = "classId";
	public static final String COMMENT = "comment";
	public static final String FAMILY_ADDR = "familyAddr";
	public static final String PHONE = "phone";
	public static final String PASSWORD = "password";

	public void save(Student transientInstance) {
		log.debug("saving Student instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Student persistentInstance) {
		log.debug("deleting Student instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Student findById(java.lang.String id) {
		log.debug("getting Student instance with id: " + id);
		try {
			Student instance = (Student) getSession().get(
					"com.djz.stuinfomge.entity.Student", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Student instance) {
		log.debug("finding Student instance by example");
		try {
			List results = getSession().createCriteria(
					"com.djz.stuinfomge.entity.Student").add(
					Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Student instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Student as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByName(Object name) {
		return findByProperty(NAME, name);
	}

	public List findByGender(Object gender) {
		return findByProperty(GENDER, gender);
	}

	public List findByClassId(Object classId) {
		return findByProperty(CLASS_ID, classId);
	}

	public List findByComment(Object comment) {
		return findByProperty(COMMENT, comment);
	}

	public List findByFamilyAddr(Object familyAddr) {
		return findByProperty(FAMILY_ADDR, familyAddr);
	}

	public List findByPhone(Object phone) {
		return findByProperty(PHONE, phone);
	}

	public List findByPassword(Object password) {
		return findByProperty(PASSWORD, password);
	}

	public List findAll() {
		log.debug("finding all Student instances");
		try {
			String queryString = "from Student";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public Student merge(Student detachedInstance) {
		log.debug("merging Student instance");
		try {
			Student result = (Student) getSession().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Student instance) {
		log.debug("attaching dirty Student instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Student instance) {
		log.debug("attaching clean Student instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	

}
